Power-operated winch for tractors



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ATTORNEY c. F. BALL Fild July 12, 1920 Sept. 14 .1926.

POWER OPERATED'WINCH FOR THACTORS Patented Sept. r lll, 1226.

@HABILES F. BALL, F PEORIA, ILLINOIS, ASSLGNOR, BY MESNE ASSGNMENTS, "lllfly @ffl CATERPLLLR TRACTR CO., CORPORATION 01E' CALLJFORNLA.

PWTER-PERATED WINCH FOR TRACTORS.

Application tiled July 12 This invention relates to power operated winches for tractors and similar vehicles.

@f late years the use of tractors in construction worl'rj "including -road building, well drilling, and the like has created an increasing demand for a Winch or hoisting drum which may be put to a variety of purposes., and therefore it becomes necessary for the tractor manufacturer to supply' a self-contained unit which can be applied to the tractor and which is susceptible of many di'erent variations in respect to thespeed. rlhe object of the present invention is to provide a strong rugged detachable unit of this character which will afford a maximum variation in speed so as to be adaptable ,to any and all purposes and which may be readily andv easily controlled.V

ln the accompanying drawings:

vFig. 1 shows a longitudinal central sectional view of the winch and connected parts.v

Fig. 2 shows a cross-section of one of the Winding drums of the winch.

The invention in its present. form comprises a winding drum extending transversely of the tractor and journaled in bearings l1. rllhis drum at one end has .an annular ange 12 on the inside of which is mounted a ring gear 13 formed with internal teeth. l front cover plate 14 bolts on lto the annular dange and encloses a planetary gear mechanism which includes a spider or revoluble member l5 carrying a set of planet gears 16 in mesh with the internal gear 13.

A sun gear 17 meshes with the planet gears and is mounted on shaft 18 which extends loosely through the winding drum 101 and has a bevel gear connection 19 at theopposite end with a driving shaft '20.

The spider 15 is fixed upon a shaft 21 journaled ,within a sleeve or hub 22 formed on the coverplate 14:. The outer end of the shaft 21 carries a pulley 23 ,and formed integrally with the said pulley is a brake drum 24e. The bralre drum 24 is formed within.,with a friction face 25 to oo-operate with an expandin clutch 26, the latter hav-V ieee. serial no. naaste.

band 32, which band is controlled by a suit y able lever. i

r1`he winding drum 10 has its rope 35 anL chored thereon as shown at 36 in Fig. 1. ln the operation of the drum, power to drive the same is transmitted through the jointed shaft 20, shaft 18, and the planetary gear all mechanism previously described. A. variety. i

of .dierent speeds in the operation of they drum is afforded by the vplanetary gear mechanism, the-lowest speed being attained by allowing the spider 15 to rotate freely. A higher speed is provided when the spider l 15 is' held stationary or retarded somewhat by applying the brake band to the drum 211. A. reverse drive is .derived by moving the exanding clutch 26 into engagement with the riction face 25 whereupon the spider 15 and internal gear 13 will revolve asa unit.

rlhc pulley 23 which is also used for hoisting or pulling purposes has not the same range of speed as the winding drum 10. A reduced speed is accomplished by clutching the friction device 26 against the friction face l25 and allowing the internal gear 13 to be' carried around with the spider at the same speed. An increased speed is derived by disengaging the friction devices and transmitting motion to the pulley through the shaft 21 with the internal gear 13 held against movement vor retarded by application of the brake-band to the drum 12.

Various changes in the construction andi arrangement of the several parts herein shown and described may 'be employed without departing from the spirit of my invention as disclosed in the appended claims. Having thus described my invention, what l claim vand desire to secure bly Letters Patent iss- LA winch comprising a winding drum and driving mechanism therefor, said driv# ing -mechanism including a` planetary gear *set comprising a driven gear fixed to thev drum, a setof planet gears meshin there- .with, a revolub e support for sa1 gears, a driving gear in meshwith sind planet j planet gears, a pulley connected directly to, and rotatable with, the revoluble supporting member,-means to control the operation of the reyoluble support to vary. the speed of the drum, means to'control the operation of the drum to vary the speedof the pulley, and means for connecting the drum and pulley together for joint rotation whereby to reverse the direction of rotation of the drum.

2. A Winch comprising a Winding drum and driving mechanism therefor, said driving mechanism including a planetary gear set comprising a driven gear fixed to the drum, a set of planet gears meshing therewith, a revoluble support for said planet-gears, a driving gear in mesh with saidplanet gears, a pulley connected directly to, and rotatable with, the revoluble supporting member, andO a brake mechanism for varying the rotation ofthe driven gear whereby to vany the speed of operation of the pulley and means for connecting the revoluble support to thel driven gear for joint rotation, whereby to reverse the direction of rotation of the drum.

3. A Winch comprising a drum, a shaft extending through the same, a driving gear xed on the shaft, an annular flange formed on one end of the drum, a controllable brakeband on said flange, an internal gear fixed Within said flange, a cover-plate on the llange, a brake-drum 'and pulley carried loosely on the hub of the cover-plate. a rontrollable brake-band on said brake-drum. a

set of planet gears meshing with the driv ing gear and internal gear, a revoluble supporting member for the planet gears, a shaft journaled in the hub of the coverplate, and connecting with the pulley and with the revoluble supporting member, and a controllable friction clutch carried on the hub of the cover-plate and co-operating With a friction face on the inside-of the brakedrum as and for the purpose stated. s

ln testimony whereof l have hereunto set my hand. i

CHARLES F. BALL. 

